Hi, On 06/25/2013 11:27 PM, Chris Dickens wrote: > Hi, > > I have discovered that the libusb process's file mask affects how > libusb_attach_kernel_driver() restores the driver. In my particular case, I > am dealing with usblp, so the kernel enumerates /dev/usb/lpX device files. > The /dev/usb folder is created and destroyed as necessary for the devices. > > When there is a single usblp device, the libusb_detach_kernel_driver() will > cause the folder to be removed. Upon reattaching the kernel driver, the > folder is restored, and the permissions are dictated by the process's file > mask. To clarify, the individual device files are not affected by the umask; > those permissions follow the udev rules. The permissions of the folder > containing the device files are affected. > > I was very surprised to see this behavior. I don't necessarily want my > application to set its own umask to deal with this issue. > > Does anyone have suggestions?
Sounds like a kernel bug to me. I guess you're using devtmpfs on /dev ? Regards, Hans ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ libusbx-devel mailing list libusbx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libusbx-devel
